Improved coverage in dynamic contrast-enhanced cardiac MRI using interleaved gradient-echo EPI
Improved coverage in dynamic contrast-enhanced cardiac MRI using interleaved gradient-echo EPI
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DOI：
10.1002/mrm.1910390403
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发表时间：
1998-04-01
影响因子：
3.3
通讯作者：
Epstein, FH
中科院分区：
文献类型：
--
作者：
Ding, SJ;Wolff, SD;Epstein, FH
交错梯度回波回波平面成像（IGEPI）序列进行了修改，并应用于心脏的动态对比增强成像。使用IGEPI，可在100 ms内采集3.0 x 3.9 mm标称平面内分辨率的图像，在心率为60次/min的情况下，每次心跳可采集8个切片。采集速度和饱和度预脉冲的使用允许在同一对比剂团注期间采集短轴和长轴图像。IGEPI保持了执行定量首过灌注分析所需的采集特性，并提供了比传统快速梯度回波更好的覆盖范围。
An interleaved gradient-echo echo-planar imaging (IGEPI) sequence was modified for and applied to dynamic contrast-enhanced imaging of the heart. Using IGEPI, images with 3.0 x 3.9 mm nominal in-plane resolution are acquired in 100 ms, enabling eight slices per heartbeat for a heart rate of 60 beats/min. The acquisition speed and use of saturation pre; pulses allows acquisition of short-and long-axis images during the same contrast bolus. IGEPI maintains the acquisition characteristics required for performing a quantitative first-pass perfusion analysis as well as providing improved coverage compared with conventional fast gradient echo.